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In a machine where INT64_IS_BUSTED, we can only support 32-bit values

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for int8 and related types.  However we might be talking to a client
that has working int64; so pq_getmsgint64 really needs to check the
incoming value and throw an overflow error if we can't represent it
accurately.
This commit is contained in:
Tom Lane 2005-09-24 15:34:07 +00:00
parent 9f53cfd9db
commit 54a8af058e
1 changed files with 6 additions and 2 deletions
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8
src/backend/libpq/pqformat.c
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@ -24,7 +24,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/libpq/pqformat.c,v 1.37 2004/12/31 21:59:50 pgsql Exp $
* $PostgreSQL: pgsql/src/backend/libpq/pqformat.c,v 1.38 2005/09/24 15:34:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -501,8 +501,12 @@ pq_getmsgint64(StringInfo msg)
l32 = ntohl(l32);
#ifdef INT64_IS_BUSTED
/* just lose the high half */
/* error out if incoming value is wider than 32 bits */
result = l32;
if ((result < 0) ? (h32 != -1) : (h32 != 0))
ereport(ERROR,
(errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("binary value is out of range for type bigint")));
#else
result = h32;
result <<= 32;